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java.lang.Objectedu.stanford.nlp.trees.TreeGraph
edu.stanford.nlp.trees.GrammaticalStructure
edu.stanford.nlp.trees.EnglishGrammaticalStructure
public class EnglishGrammaticalStructure
A GrammaticalStructure for English.
The Stanford parser should be run with the "-retainNPTmpSubcategories" option! Caveat emptor! This is a work in progress. Suggestions welcome.
Nested Class Summary | |
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static class |
EnglishGrammaticalStructure.FromDependenciesFactory
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Field Summary |
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Fields inherited from class edu.stanford.nlp.trees.GrammaticalStructure |
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allTypedDependencies, CoNLLX_FieldCount, CoNLLX_GovField, CoNLLX_POSField, CoNLLX_RelnField, CoNLLX_WordField, DEFAULT_PARSER_FILE, dependencies, puncFilter, typedDependencies |
Fields inherited from class edu.stanford.nlp.trees.TreeGraph |
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root |
Constructor Summary | |
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EnglishGrammaticalStructure(java.util.List<TypedDependency> projectiveDependencies,
TreeGraphNode root)
Used for postprocessing CoNLL X dependencies |
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EnglishGrammaticalStructure(Tree t)
Construct a new GrammaticalStructure from an existing parse
tree. |
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EnglishGrammaticalStructure(Tree t,
Filter<java.lang.String> puncFilter)
This gets used by GrammaticalStructureFactory (by reflection). |
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EnglishGrammaticalStructure(Tree t,
Filter<java.lang.String> puncFilter,
HeadFinder hf)
This gets used by GrammaticalStructureFactory (by reflection). |
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EnglishGrammaticalStructure(Tree t,
Filter<java.lang.String> puncFilter,
HeadFinder hf,
boolean threadSafe)
Construct a new GrammaticalStructure from an existing parse
tree. |
Method Summary | |
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static EnglishGrammaticalStructure |
buildCoNLLXGrammaticalStructure(java.util.List<java.util.List<java.lang.String>> tokenFields)
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protected void |
collapseDependencies(java.util.List<TypedDependency> list,
boolean CCprocess,
boolean includeExtras)
Destructively modifies this Collection<TypedDependency>
by collapsing several types of transitive pairs of dependencies. |
protected void |
collapseDependenciesTree(java.util.List<TypedDependency> list)
Destructively modify the Collection<TypedDependency> to collapse
language-dependent transitive dependencies but keeping a tree structure. |
protected static GrammaticalRelation |
conjValue(java.lang.String conj)
Does some hard coding to deal with relation in CONJP. |
protected void |
correctDependencies(java.util.Collection<TypedDependency> list)
Destructively modify the TypedDependencyGraph to correct
language-dependent dependencies. |
protected Filter<TypedDependency> |
extraTreeDepFilter()
Returns a Filter which checks dependencies for usefulness as extra tree-based dependencies. |
protected void |
getExtras(java.util.List<TypedDependency> list)
Get extra dependencies that do not depend on the tree structure, but rather only depend on the existing dependency structure. |
static TreeGraphNode |
getSubject(TreeGraphNode t)
Tries to return a node representing the SUBJECT (whether
nominal or clausal) of the given node t . |
protected void |
postProcessDependencies(java.util.List<TypedDependency> list)
Post process the dependencies in whatever way this language requires. |
static java.util.List<GrammaticalStructure> |
readCoNLLXGrammaticalStructureCollection(java.lang.String fileName)
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Methods inherited from class edu.stanford.nlp.trees.TreeGraph |
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addNodeToIndexMap, getNodeByIndex, getNodes, root, toString |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public EnglishGrammaticalStructure(Tree t)
GrammaticalStructure
from an existing parse
tree. The new GrammaticalStructure
has the same tree structure
and label values as the given tree (but no shared storage). As part of
construction, the parse tree is analyzed using definitions from
GrammaticalRelation
to populate
the new GrammaticalStructure
with as many labeled grammatical
relations as it can.
t
- Parse tree to make grammatical structure frompublic EnglishGrammaticalStructure(Tree t, Filter<java.lang.String> puncFilter)
t
- Parse tree to make grammatical structure frompuncFilter
- Filter to remove punctuation dependenciespublic EnglishGrammaticalStructure(Tree t, Filter<java.lang.String> puncFilter, HeadFinder hf)
t
- Parse tree to make grammatical structure frompuncFilter
- Filter to remove punctuation dependencieshf
- HeadFinder to use when building itpublic EnglishGrammaticalStructure(Tree t, Filter<java.lang.String> puncFilter, HeadFinder hf, boolean threadSafe)
GrammaticalStructure
from an existing parse
tree. The new GrammaticalStructure
has the same tree structure
and label values as the given tree (but no shared storage). As part of
construction, the parse tree is analyzed using definitions from
GrammaticalRelation
to populate
the new GrammaticalStructure
with as many labeled grammatical
relations as it can.
t
- Parse tree to make grammatical structure frompuncFilter
- Filter for punctuation wordshf
- HeadFinder to use when building itthreadSafe
- Whether or not to support simultaneous instances among multiple
threadspublic EnglishGrammaticalStructure(java.util.List<TypedDependency> projectiveDependencies, TreeGraphNode root)
Method Detail |
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protected Filter<TypedDependency> extraTreeDepFilter()
extraTreeDepFilter
in class GrammaticalStructure
public static TreeGraphNode getSubject(TreeGraphNode t)
SUBJECT
(whether
nominal or clausal) of the given node t
. Probably, node
t
should represent a clause or verb phrase.
t
- a node in this GrammaticalStructure
t
, or else
null
protected void correctDependencies(java.util.Collection<TypedDependency> list)
GrammaticalStructure
TypedDependencyGraph
to correct
language-dependent dependencies. (e.g., nsubjpass in a relative clause)
Default is no-op; to be over-ridden in subclasses.
correctDependencies
in class GrammaticalStructure
protected void postProcessDependencies(java.util.List<TypedDependency> list)
GrammaticalStructure
postProcessDependencies
in class GrammaticalStructure
protected void getExtras(java.util.List<TypedDependency> list)
GrammaticalStructure
getExtras
in class GrammaticalStructure
protected void collapseDependencies(java.util.List<TypedDependency> list, boolean CCprocess, boolean includeExtras)
Collection<TypedDependency>
by collapsing several types of transitive pairs of dependencies.
If called with a tree of dependencies and both CCprocess and
includeExtras set to false, then the tree structure is preserved.
prep(cat, in)
and pobj(in, hat)
are collapsed to
prep_in(cat, hat)
prep(heard, of)
and pcomp(of, attacking)
are
collapsed to prepc_of(heard, attacking)
cc(investors, and)
and
conj(investors, regulators)
are collapsed to
conj_and(investors,regulators)
possessive(Montezuma, 's)
will be erased. This is like a collapsing, but
due to the flatness of NPs, two dependencies are not actually composed.ref(man, that)
and dobj(love, that)
are collapsed
to dobj(love, man)
collapseDependencies
in class GrammaticalStructure
list
- A list of dependencies to process for possible collapsingCCprocess
- apply CC process?protected void collapseDependenciesTree(java.util.List<TypedDependency> list)
GrammaticalStructure
Collection<TypedDependency>
to collapse
language-dependent transitive dependencies but keeping a tree structure.
Default is no-op; to be over-ridden in subclasses.
collapseDependenciesTree
in class GrammaticalStructure
list
- A list of dependencies to process for possible collapsingprotected static GrammaticalRelation conjValue(java.lang.String conj)
conj
- The head dependency of the conjunction marker
public static java.util.List<GrammaticalStructure> readCoNLLXGrammaticalStructureCollection(java.lang.String fileName) throws java.io.IOException
java.io.IOException
public static EnglishGrammaticalStructure buildCoNLLXGrammaticalStructure(java.util.List<java.util.List<java.lang.String>> tokenFields)
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